Añisclo Canyon Nature · Fanlo, Sobrarbe, Huesca A gorge of about 10 kilometres carved by the Bellós river in Ordesa National Park (Sobrarbe, Huesca), which is born in a glacial cirque and then becomes hemmed into a deep canyon through the karstic action of water. Down its vertical walls falls the Fuen Blanca waterfall, and two plants endemic to the Pyrenees grow there, Petrocoptis crassifolia and the carnivorous Pinguicula longifolia, among beech woods, mixed forests and holm oak groves. It is best visited in late spring and summer, avoiding the snowmelt. Photo: The original uploader was Jsanchezes at Spanish Wikipedia. (CC BY-SA 3.0) What to see and do in Fanlo